What is b4fm.dll?

B4fm.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if b4fm.dll is a Windows system file or if it belongs to an application that you can trust.

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B4fm.dll file information

The process known as Burn4Free right context menu belongs to software Burn4Free CD and DVD or Burn4Free CD & DVD by Ikysasoft s.r.l. uninominale (

Description: B4fm.dll is not essential for Windows and will often cause problems. The b4fm.dll file is located in the C:\Windows\System32 folder or sometimes in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 223,744 bytes (70% of all occurrences), 224,768 bytes or 557,568 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. There is no description of the program. The program has no visible window. The service has no detailed description. It can change the behavior of other programs or manipulate other programs. The file is not a Windows system file. b4fm.dll appears to be a compressed file. Therefore the technical security rating is 81% dangerous, however you should also read the user reviews.

Recommended: Identify b4fm.dll related errors

Important: Some malware also uses the file name b4fm.dll, for example Trojan.Generic.1705785 (detected by BitDefender), and Generic.dx!ksm (detected by McAfee). Therefore, you should check the b4fm.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

This DLL puts "burn for Free" on your right click context menu.
  Erimikos   (further information)
indeed, Burn4Free uses it
Its Burn 4 free's right click menu. Not dangerous.
  Joe   (further information)
This is a dll installed with burn 4 free freeware DVD/cd burning software
  Michael Rawlings   (further information)
belong to burn4free and is not a trojan
i dont have burn4free installed but have b4fm.dll
AVG tags it as dangerous. It is getting called whenever right-clicking for Windows Explorerer (file management) and stopping explorere.exe from running.
AVG says Adware Generic4.BWU
  mxxpwr   (further information)
If it is harmless why can't it ever be deleted, even after the program is uninstalled? Burn4Free leaves things on your computer that you can't get rid of, Even deleting them in the regitry doesn't do it.
It's definitely burn4free library (CD burning software)
  Rodrigo Sakae  
the same kind of worm has been detected in Burn4Free ,exe file. False positive?
F-PROT Antivirus detects W32/Induc.A inside of file.
  Enrique Mendoza   (further information)

Rating chart

Summary: Average user rating of b4fm.dll: based on 16 votes with 12 user comments. 4 users think b4fm.dll is essential for Windows or an installed application. One user thinks it's probably harmless. 5 users think it's neither essential nor dangerous. 4 users suspect danger. 2 users think b4fm.dll is dangerous and recommend removing it. 2 users don't grade b4fm.dll ("not sure about it").

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Best practices for resolving b4fm issues

A clean and tidy computer is the key requirement for avoiding problems with b4fm. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the b4fm.dll process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

b4fm.dll [all]